But SO is only good if you know what you're looking for. It's not a site where you can learn about something you SHOULD know. Right now I have tons of sites in my rss reader that I have to sort through to find good information on new technologies, best practices, etc. For example, if I've never heard of SQL injection how would I know to protect my site from it? I wish SO had more wiki style bundling of good information together to inform users as well as a quick stop for problems I am having trouble with.

When Joel Spolsky and I set out to design the Stack Exchange Q&A engine in 2008 – then known as Stack Overflow – we borrowed liberally and unapologetically from any online system that we felt worked. Some of our notable influences included: Reddit and Digg voting Xbox 360 achievements Wikiped...